
.left-1{
	position: relative;
	margin: 20px;
	width: 80px;
	height: 80px;
	user-select: none;
	float: left;
}
.hover-effect-left{
	position: absolute;
	width: 100px;
	height: 100px;
	text-align: center;
	background: #333;
	top: 0;
	left: 0;
}
.hover-effect-left:hover {
  background-color: #3498db; /* 鼠标悬浮时的背景色 */
}